// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_ANDROID_COMPOSITED_TOUCH_HANDLE_DRAWABLE_H_
#define CONTENT_BROWSER_ANDROID_COMPOSITED_TOUCH_HANDLE_DRAWABLE_H_

#include "ui/touch_selection/touch_handle.h"

#include "base/android/jni_android.h"
#include "base/android/scoped_java_ref.h"
#include "base/macros.h"
#include "cc/layers/ui_resource_layer.h"

namespace content {

// Touch handle drawable implementation backed by a cc layer.
class CompositedTouchHandleDrawable : public ui::TouchHandleDrawable {
public:
    CompositedTouchHandleDrawable(cc::Layer* root_layer,
        float dpi_scale,
        const base::android::JavaRef<jobject>& context);
    ~CompositedTouchHandleDrawable() override;

    // ui::TouchHandleDrawable implementation.
    void SetEnabled(bool enabled) override;
    void SetOrientation(ui::TouchHandleOrientation orientation,
        bool mirror_vertical,
        bool mirror_horizontal) override;
    void SetOrigin(const gfx::PointF& origin) override;
    void SetAlpha(float alpha) override;
    gfx::RectF GetVisibleBounds() const override;
    float GetDrawableHorizontalPaddingRatio() const override;

private:
    void DetachLayer();
    void UpdateLayerPosition();

    const float dpi_scale_;
    float drawable_horizontal_padding_ratio_;
    ui::TouchHandleOrientation orientation_;
    gfx::PointF origin_position_;
    scoped_refptr<cc::UIResourceLayer> layer_;

    DISALLOW_COPY_AND_ASSIGN(CompositedTouchHandleDrawable);
};

} // namespace content

#endif // CONTENT_BROWSER_ANDROID_COMPOSITED_TOUCH_HANDLE_DRAWABLE_H_
